linux-kernel - Re: [PATCH v2 8/9] rbtree: faster augmented rbtree manipulation

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Message-ID: <1344263368.27828.60.camel@twins>
Date:	Mon, 06 Aug 2012 16:29:28 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Michel Lespinasse <walken@...gle.com>
Cc:	riel@...hat.com, daniel.santos@...ox.com, aarcange@...hat.com,
	dwmw2@...radead.org, akpm@...ux-foundation.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org
Subject: Re: [PATCH v2 8/9] rbtree: faster augmented rbtree manipulation

On Thu, 2012-08-02 at 15:34 -0700, Michel Lespinasse wrote:
> +void __rb_insert_augmented(struct rb_node *node, struct rb_root *root,
> +       void (*augment_rotate)(struct rb_node *old, struct rb_node *new))
> +{
> +       __rb_insert(node, root, augment_rotate);
> +}
> +EXPORT_SYMBOL(__rb_insert_augmented);
> +
> +void rb_erase_augmented(struct rb_node *node, struct rb_root *root,
> +                       const struct rb_augment_callbacks *augment)
> +{
> +       __rb_erase(node, root, augment);
> +}
> +EXPORT_SYMBOL(rb_erase_augmented); 

>From a symmetry POV I'd say have both take the rb_augment_callbacks
thing. The two taking different arguments is confusing at best.
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